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Finding the Fourth Proportional to 169,136.24, 253,520.96 and 84,692.82

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Solution

The fourth proportional to 169,136.24, 253,520.96 and 84,692.82 is: 126,947.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,136.24 : 253,520.96 = 84,692.82 : x
  2. Step 2: Convert to fraction form
    169,136.24/253,520.96 = 84,692.82/x
  3. Step 3: Cross multiply
    169,136.24x = 253,520.96 × 84,692.82
  4. Step 4: Simplify right side
    169,136.24x = 21,471,405,558.75
  5. Step 5: Solve for x
    x = 21,471,405,558.75/169,136.24
  6. Step 6: Final answer
    x = 126,947.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.